To help minimize noise with switching transients and further avoid false triggers from ringing / reflections while interacting with the one-shots, bypass capacitors should be used on both power supplies, V_CCA and V_CCB. Careful considerations should be made for short path bypass capacitors, as close as possible to both V_CC supplies and GND while designing printed circuit boards (PCB) with devices with one-shots.

PCB signal trace-lengths must be kept short enough so that the round-trip delay of any reflection is less than the one-shot duration, typically 10ns to 30 ns. With minimal parasitic capacitance and inductance from shorter traces, reflections encounter low impedance at the source driver further avoiding false triggering of the one-shot for an abnormal output pulse width, output signal oscillations, or other adverse system-level effects.

The following equation for the board effective relative permittivity can be used to determine the maximum trace length to help remain within the design's stipulated delay:

Propagation Velocity, V= c/√(ε_r ).

where c is the speed of light and the wavelength of the signal, λ = V / bandwidth.

For example, typical bandwidth for logic devices are at 300 MHz and the typical effective permittivity of a PCB ε_r, around 4.

Signal integrity issues may be observed with trace lengths > 1/8^th of the signal’s wavelength, (λ/8).

Hence, V = 3×10^{^8} (m/s) /√4= 15×10^{^7}m/s

λ = 15×10^{^7} (m/s) / 300×10^{^6} (Hz) = 0.5 m

And, λ/8 = 0.625 m. For example, approximately 6 cm or approximately 2.5 inches.